Celsius (oven) to Gas Mark

Free instant celsius (oven) to gas mark converter. 1 °C = -8.648 GM.

-8.648
Formula
1 °C = -8.648 GM

Common Celsius (oven) to Gas Mark values

Celsius (oven) (°C)Gas Mark (GM)
1-8.648
5-8.36
10-8
25-6.92
50-5.12
100-1.52
50027.28
100063.28

How does Celsius (oven) to Gas Mark conversion work?

Type a value in the Celsius (oven) (°C) field and the equivalent in Gas Mark (GM) appears instantly to the right. The math uses the exact formula shown above — no rounding errors, no approximations beyond standard floating-point precision. Use the swap button to flip the units and see the inverse conversion.

Celsius (oven). Standard oven temperature in metric countries. Common settings: 160°C (low), 180°C (moderate), 200°C (hot), 220°C (very hot).

Gas Mark. UK gas-oven dial settings. Gas mark 1 ≈ 135°C (275°F); each step up adds about 14°C (25°F). Gas mark 4 (350°F) is standard for most baking.

⚡ Instant results

No submit button — the result updates as you type. Math runs entirely in your browser, so it’s as fast as your device.

📱 Use on any device

Works in any modern browser — Mac, Windows, Linux, iPhone, Android, tablets. No installation, no signup.

🎯 Accurate conversions

Conversion factors come from the official standard (NIST, BIPM, ISO definitions where applicable). Values are precise to standard floating-point limits.

🎁 Always free, no signup

Free, every time. No account, no email, no “trial” that becomes paid. Ad-supported so you never have to pay.

Frequently asked

What is the formula for converting Celsius (oven) to Gas Mark?+
The formula is: 1 °C = -8.648 GM. Type any value into the calculator above and the result appears instantly.
How do I convert Gas Mark back to Celsius (oven)?+
Click the swap button (⇄) above to go to the Gas Mark → Celsius (oven) converter, or use the inverse formula derived from the one shown.

Related cooking converters